Sökning: "switching systems"

Visar resultat 31 - 35 av 295 avhandlingar innehållade orden switching systems.

  1. 31. Shaping Future Opportunities for Biomass Gasification - The Role of Integration

    Författare :Johan Ahlström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydrogen; heat integration; Gasification; sawmill; SNG; power-to-gas; Biomethane; Biorefinery; process integration;

    Sammanfattning : A considerable number of studies indicate that biofuels produced from lignocellulosic biomass will most probably play a significant role in achieving the climate goals stated in the Paris agreement. Several candidate technologies could be implemented to produce these fuels, and one of the most promising is thermal gasification. LÄS MER

  3. 32. Techno-economic analysis of combined cycle power plants integrated with chemical looping reforming and CO2 capture

    Författare :Shareq Mohd Nazir; Olav Bolland; Shahriar Amini; Norway Trondheim Norwegian University of Science and Technology Department of Energy and Process Engineering; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Technology; Energiteknik;

    Sammanfattning : The current thesis is a part of the EU FP7 Project titled NanoSim. It focuses on techno-economic analysis of combined cycle power plants with integrated pre-combustion CO2 capture and reforming of Natural Gas (NG). LÄS MER

  4. 33. Modelling drivers of energy demand in the European Union building sector

    Författare :Eoin Ó Broin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EU; Elasticities; Heating; Policy; Bottom-up; Top-down; Efficiency; Residential;

    Sammanfattning : In the context of ongoing initiatives within the European Union (EU) to tackle global warming and to secure future energy supplies, the building sector is often cited as offering strong potential for energy savings. The primary aims of this thesis are to analyse the historical data related to EU building and to generate scenarios that highlight the technical and non-technical parameters that affect the energy demands (and thereby the potentials for savings) of the building sector. LÄS MER

  5. 34. Planning and Provisioning Strategies for Optical Core Networks

    Författare :Ajmal Muhammad; Robert Forchheimer; Lena Wosinska; Massimo Tornatore; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Optical communication networks are considered the main catalyst for the transformation of communication technology, and serve as the backbone of today's Internet. The inclusion of exciting technologies, such as, optical amplifiers, wavelength division multiplexing (WDM), and reconfigurable optical add/drop multiplexers (ROADM) in optical networks have made the cost of information transmission around the world negligible. LÄS MER

  7. 35. Analysis and Design of Hybrid Control Systems

    Författare :Jörgen Malmborg; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lyapunov theory; Mode switching; Multi-controllers; PID control; Simulation; Higher order sliding; Hybrid control; Sliding modes; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Sammanfattning : Different aspects of hybrid control systems are treated: analysis, simulation, design and implementation. A systematic methodology using extended Lyapunov theory for design of hybrid systems is developed. The methodology is based on conventional control designs in separate regions together with a switching strategy. LÄS MER